Answered: 45 70 60 52 66 67 62 54 61 51…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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45	70	60	52	66	67	62	54	61
51	72	75	87	57	85	66	66	74
81	65	41	78	55	68	66	67	67
45	54	30	60	47	52	21	65	60
77	60	74	79	77	74	40	79	74
90	83	80	71	25	71	78	88	50
83	84	40	76	68	100	87	40	68
66	63	36	52	71	74	47

Group the data into a frequency distribution with six classes. You need to include class limits, class boundaries, and frequency, cumulative frequency, and relative frequency.

Find:
b) mean

c) median
d) midrange
e) IQR
f) Test for any outliers.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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